Question

The phosphorus cycle differs from the carbon cycle in that

• A. Phosphorus does not enter living organisms, whereas carbon does.
• B. The phosphorus cycle does not include a gaseous phase, whereas the carbon cycle does.
• C. The phosphorus cycle includes a solid phase, whereas the carbon cycle does not.
• D. The primary reservoir of the phosphorus cycle is the atmosphere, whereas the primary reservoir for the carbon cycle is in rock.

Answer 1

Answer: (B)

The phosphorus cycle does not include a gaseous phase, whereas the carbon cycle does.